523404441 has 24 divisors (see below), whose sum is σ = 893830080. Its totient is φ = 288773856.

The previous prime is 523404437. The next prime is 523404463. The reversal of 523404441 is 144404325.

It is a happy number.

It is not a de Polignac number, because 523404441 - 2² = 523404437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523404421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141415 + ... + 145068.

It is an arithmetic number, because the mean of its divisors is an integer number (37242920).

Almost surely, 2^523404441 is an apocalyptic number.

It is an amenable number.

523404441 is a deficient number, since it is larger than the sum of its proper divisors (370425639).

523404441 is a wasteful number, since it uses less digits than its factorization.

523404441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286525 (or 286522 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 523404441 is about 22878.0340282988. The cubic root of 523404441 is about 805.8962490652.

Adding to 523404441 its reverse (144404325), we get a palindrome (667808766).

The spelling of 523404441 in words is "five hundred twenty-three million, four hundred four thousand, four hundred forty-one".